am I in the wrong ?

I lied about my age because I need everyone's opinion, I'm 15 I life with my nan and grandad. I deal with verbal abuse, because I'm in care they hold it against me and say things like you don't have to be etc, I'm laying in bed not at school because my period hurts and I'm being screamed at 'you won't be going no where today and that boyfriend isn't coming round' which I understand, why do they have to shout at me and make me feel so Down and depressed? Honestly I hate myself and my life and i feel like the only reason why I'm still alive is for my boyfriend . I'm not attention seeking I don't want you to act all like oh I'm so sorry I need advice and help because I can't take it no more